/*
 * The MIT License (MIT) Copyright (c) 2013 AlgorithmX2 Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software
 * without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions: The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package appeng.api.config;

public enum AccessRestriction {

    NO_ACCESS(0),
    READ(1),
    WRITE(2),
    READ_WRITE(3);

    private final int permissionBit;

    AccessRestriction(final int v) {
        this.permissionBit = v;
    }

    public boolean hasPermission(final AccessRestriction ar) {
        return (this.permissionBit & ar.permissionBit) == ar.permissionBit;
    }

    public AccessRestriction restrictPermissions(final AccessRestriction ar) {
        return this.getPermByBit(this.permissionBit & ar.permissionBit);
    }

    private AccessRestriction getPermByBit(final int bit) {
        return switch (bit) {
            default -> NO_ACCESS;
            case 1 -> READ;
            case 2 -> WRITE;
            case 3 -> READ_WRITE;
        };
    }

    public AccessRestriction addPermissions(final AccessRestriction ar) {
        return this.getPermByBit(this.permissionBit | ar.permissionBit);
    }

    public AccessRestriction removePermissions(final AccessRestriction ar) {
        return this.getPermByBit(this.permissionBit & (~ar.permissionBit));
    }
}
